Issue #3321282: Add 'declare(strict_types = 1)' where needed

package_manager/tests/modules/package_manager_bypass/src/PathLocator.php

@@ -34,11 +34,19 @@ class PathLocator extends BasePathLocator {
    * {@inheritdoc}
    */
   public function getProjectRoot(): string {
+    return $this->proxyGetProjectRoot();
+  }
+
+  /**
+   * Proxy function for getProjectRoot().
+   */
+  protected function proxyGetProjectRoot(): string|false {
     $project_root = $this->getVendorDirectory() . DIRECTORY_SEPARATOR . '..';
     // @see https://github.com/bovigo/vfsStream/issues/207
-    return !str_starts_with($project_root, 'vfs://')
+    $result_get_project_root = !str_starts_with($project_root, 'vfs://')
       ? realpath($project_root)
       : $project_root;
+    return $this->state->get(static::class . ' root', $result_get_project_root);
   }
 
   /**